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HK: Fachverband Physik der Hadronen und Kerne
HK 28: Structure and Dynamics of Nuclei VII
HK 28.5: Vortrag
Dienstag, 15. März 2016, 17:45–18:00, S1/01 A04
The electric dipole response of neutron rich tin isotopes — •Andrea Horvat1, Thomas Aumann1, Konstanze Boretzky2, Jacob Johansen3, Dominic Rossi1, Fabia Schindler1, and Philipp Schrock4 for the R3B collaboration — 1Institut für Kernphysik, TU Darmstadt, Germany — 2GSI Helmholzzentrum für Schwerionenforschung, Darmstadt, Germany — 3Aarhus University, Denmark — 4The University of Tokyo, Japan
Studies of the dipole response in medium heavy and heavy neutron rich nuclei reveal valuable information about the isospin dependence of the nuclear equation of state. Therefore an experimental campaign investigating both the electric dipole response via Coulomb excitation and neutron removal along the tin isotope chain (124−134Sn) has been carried out at the R3B (Reactions with Relativistic Radioactive Beams) setup at GSI (Helmholtzzentrum für Schwerionenforschung) for which the analysis is ongoing.
The E1 response was induced via relativistic Coulomb scattering by a lead target in inverse kinematics, and calls for a kinematically complete determination of all reaction products in order to reconstruct the excitation energy by means of the invariant mass method. The goal is to obtain the Coulomb excitation cross section up to the adiabatic cut-off energy, covering the giant dipole resonance (GDR) range.
This work is supported by HIC for FAIR, GSI-TU Darmstadt cooperation, NAVI and the BMBF project 05P15RDFN1.